Latest Circulatory system Stories

Data Evaluating the Effect of Repatha(TM)(Evolocumab) on LDL-C and Cardiovascular Events to be Featured in Late-Breaking Session
THOUSAND OAKS, Calif., March 2, 2015 /PRNewswire/ -- Amgen (NASDAQ:AMGN)

Analyzing data from 58,000 heart stress tests, Johns Hopkins cardiologists report they have developed a formula that estimates one's risk of dying over a decade based on a person's ability to exercise on a treadmill at an increasing speed and incline.

An echocardiogram is a test that, much like an ultrasound, uses sound waves to create a moving image of the heart. The most common type of echocardiogram is performed transthoracic, meaning the image is taken through a probe against the chest. A TTE does not involve radiation and is a very safe procedure. A cardiac sonographer will put a gel on the patient's chest and move the transducer around different areas, including directly anterior to the breastbone, inferior and lateral to the right...

A coronary angiography, also known as a coronary catheterization, is a procedure that gives both visual and tactical access to coronary circulation and blood filled chambers of the heart for both diagnostic and interventional purposes. It is one of many diagnostic tests used in cardiology. More specifically, coronary catheterization recognizes occlusion, stenosis, thrombosis or aneurismal enlargement of the walls of the coronary arteries; heart chamber size; heart muscle contraction...

The precordial thump is an application of mechanical energy through a calculated strike to the torso when in a specific fatal heart rhythm. This procedure is used in very specific circumstances by highly trained health professionals with ACLS certifications.
The Procedure
While in the presence of a patient that is suffering a potentially fatal heart rhythm, a medical provider can strike a calculated point on the sternum to disrupt that rhythm. The energy transferred by the provider is...

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.